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WISE J0521+1025
WISE J0521+1025 is a nearby brown dwarf of spectral type T7.5, located in constellation Orion 〔It is the nearest known star/brown dwarf in this constellation.〕 at approximately 5.0 pc (16.3 ly) from Earth.
It is also the nearest known T dwarf in the northern sky.
==History of observations==
WISE J0521+1025 was discovered by Bihain ''et al.'' by selection of sources with colours typical for T dwarfs from WISE All-Sky source catalogue and checking them for high proper motion using older surveys: 2MASS, DENIS, SDSS, SSS, DSS and UKIDSS. Three objects among about ten candidates, including WISE J0521+1025, were selected for spectroscopic follow up with Large Binocular Telescope (LBT). October 9, 2012 Bihain ''et al.'' carried out follow up observations of WISE J0521+1025 with near-Infrared spectrograph LUCI 1 on LBT. June 25, 2013 ''Astronomy & Astrophysics'' received the discovery paper, which was accepted for publication 10 July 2013.
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